German, Hardcover (2006)
The book describes the - mostly underground - fortifications of the "Oder - Warthe - Bogen". Built by the Germans, but now in Poland.
German, Hardcover (2018)
German, Hardcover (2021)
Illustrated with - mostly colour- photos from Hitler's personal photographer Walter Frentz, this book shows life and work at FHQ Wolfsschanze, Hitlre's command post in Poland.